From Longman Dictionary of Contemporary Englishbird's-eye viewˌbird’s-eye ˈview noun [singular] 1 
LOOK ATa view of something from high above it Visitors can enjoy a bird’s-eye view of the area from the castle turrets.2 DESCRIBEa general report or account of something, without many details a bird’s-eye view of recent research
LOOK ATa view of something from high above it Visitors can enjoy a bird’s-eye view of the area from the castle turrets.2 DESCRIBEa general report or account of something, without many details a bird’s-eye view of recent researchExamples from the Corpus
bird's-eye view• From the road, you get a bird's-eye view across the Waipio Valley. 